Complete the sentence using word "parallel, perpendicular or sixty"
degrees.
The normal force is always_______
to the surface.

The potential energy  and kinetic energy of the bowling ball are 2,205 J and 37.5 J respectively.

The bowling ball at the given position and speed possess gravitational potential energy and kinetic energy.

The potential energy  and kinetic energy of the bowling ball is calculated as follows;

P.E = mgh

where;

P.E =  (3 x 9.8 x 75 )

P.E = 2,205 J

The kinetic energy of the bowling ball is calculated as;

K.E = ¹/₂ mv²

where;

K.E = ¹/₂ ( 3 ) x (5²)

K.E = 37.5 J

Learn more about potential energy here: brainly.com/question/1242059

#SPJ1

Answer:

i think it would be a but i am not 100% sure on that

Answer:

A

Explanation:

The universe was created from a cosmic explosion.

The angular acceleration of the disk drive is 15.6 rad/s².

a) The time it takes to make one complete revolution is given by T = 1/f,

where f is the frequency, so the time it takes to make n revolutions is T = n/f.

The frequency is f = 1/T, and the period is T = t/n. If it takes 0.440s for the drive to make its second complete revolution,

We can use the formula:    ω² = ω0² + 2αθ and θ = 2πn to find the time it takes to make one complete revolutionω² = ω0² + 2αθω0 = 0θ = 2π(1) = 2π ω² = 2αθ = 2α(2π) α = ω²/2θα = (2π/0.440s)²/(2 x 2π) α = 15.6 rad/s² T = (2π/ω)  = (2π) / √(ω0² + 2αθ)  = (2π) / √(0² + 2(15.6 rad/s²)(2π)) = 0.268 s

b) We know that the time it takes to make one complete revolution is T = 0.268s, and that the angular acceleration is constant, so we can use the formula θ = ω0t + 1/2αt² to find the angular acceleration of the disk drive

θ = 2π = ω0T + 1/2αT² ω0 = 0 (since the disk drive starts from rest)2π = 1/2αT² + 0 T = 0.268sα = 2θ/T²α = 2(2π)/(0.268s)²α = 15.6 rad/s²

Therefore, the angular acceleration of the disk drive is 15.6 rad/s².

Learn more about angular acceleration

brainly.com/question/30237820

#SPJ11

Answer:

elements

not really an explanation

Answer:

B. Neutron has no charge

Answer:

B. Neutron

Explanation:

Firstly, the nucleus is what contains the protons and electrons, so it is not an atomic particle. The electron has a negative charge, and the proton has a positive charge (you can remember this by looking at its prefix 'pro'). This means the neutron has no charge (think of it as neutral).

Explanation: dfvjdsbv dvjdbv dvuhdv

In this lab, the weight of water in a cylinder will be measured using a digital balance while an object is submerged in the water using a string, ensuring it remains suspended without contacting the sides or bottom of the cylinder.

This laboratory experiment aims to investigate the concept of buoyancy and apply Archimedes' principle. By placing a cylinder of water on a digital balance, we can obtain an accurate measurement of the water's weight, which is equivalent to its mass. The digital balance provides precise readings, allowing for accurate calculations.

To study the buoyant force, an object is submerged in the water using a string. It is crucial to ensure that the object remains suspended and does not touch the sides or bottom of the cylinder. By doing so, we eliminate any additional factors that could influence the experiment's outcome and focus solely on the buoyant force acting on the object.

The difference in weight between the water alone and the water with the submerged object represents the buoyant force exerted by the water on the object. This disparity arises because the object displaces a volume of water equal to its own volume, leading to an upward force known as buoyancy. Archimedes' principle states that the buoyant force is equal to the weight of the displaced fluid.

By analyzing the weight difference and understanding the relationship between the weight of the displaced water and the buoyant force, we can gain insights into the principles of buoyancy. This experiment helps reinforce the fundamental concepts of fluid mechanics and demonstrates the practical applications of Archimedes' principle.

Learn more about Cylinder

brainly.com/question/10048360

#SPJ11

When a hair dryer is plugged into a switch, it begins to operate and converts electrical energy into heat energy. Because of this, the hair dryer produces hot air when we use it.

A atom's charged particles can move an item or start an action by using electrical energy. Electrical energy is produced by the transfer of electrons of one atom to another. A toaster or a phone charger is powered by electricity each time you plug them into a wall outlet.

Electricity is used by people as lighting, heating, cooling, & refrigeration as well as to run machines, computers, electronics, appliances, and public transit systems. In 2021, the United States consumed over 3.93 trillion kWh, which is 13 times more power than it did in 1950.

To know more about electrical visit:

https://brainly.com/question/29408366

#SPJ1

Answer:

x = 4.85 cm

Explanation:

From work energy theorem when dealing with a spring in compression, we know that total work done is;

W_t = ½kx²

Where;

k is Force constant

x is max compression

Now, we know that this is also equal to the kinetic energy.

K.E = ½mv²

Thus;

½kx² = ½mv²

Making x the subject;

x = √(mv²/k)

We are given;

m = 5 kg

v = 2 m/s

k = 85 N/cm = 8500 N/m

Thus;

x = √(mv²/k)

x = √(5 × 2²/8500)

x = 0.0485 m

x = 4.85 cm

Answer:

the temperature would go up

Explanation:

It doesn't matter about what the temperature is, when the heat photons stay in the atmosphere they collect heat and build up the atoms. Then the Photons heat up and the temperature goes up.

If you thought this was good, can I have a brainesit plz.

If you didn't don't worry about it, have a good day!

Thanks,

:)

The correct answer is D) none of the above.

A sphere of pure U-235 will explode if it is none of the above.

A sphere of pure U-235 will not explode simply by being hot enough, shaken hard enough, or big enough. The explosive potential of U-235 is related to its ability to undergo a nuclear chain reaction. For an explosion to occur, a critical mass of U-235 needs to be present, and the conditions for a sustained nuclear chain reaction must be met.

In a nuclear explosion, the critical mass of U-235 is achieved by bringing together enough fissile material within a short period, typically achieved through processes like implosion or gun-type assembly. External factors such as temperature or physical disturbance alone cannot trigger a nuclear explosion in a pure U-235 sphere.

Therefore, the correct option is D) none of the above.

To know more about U-235, click here:

https://brainly.com/question/19382304

#SPJ11

Using this equilibrium condition, we can solve for x: 3.924 N = 19.5 N/m * x, which gives x = 3.924 N / 19.5 N/m ≈ 0.201 m. Therefore, the body descends approximately 0.201 meters below the initial position.

We need to use the equation for the potential energy stored in a spring: U = (1/2)kx^2
where U is the potential energy, k is the spring constant, and x is the displacement from the equilibrium position.
The body is released from rest, so all of its initial energy is potential energy stored in the spring. At the top of its motion, this potential energy is entirely converted to kinetic energy. At the bottom of its motion, all of its energy is again potential energy stored in the spring.
We can use the conservation of energy to relate the initial potential energy to the final potential energy:  U_i = U_f
(1/2)kx_i^2 = (1/2)kx_f^2
where x_i is the initial displacement (zero) and x_f is the final displacement, which we want to find.
Solving for x_f, we get:  x_f = sqrt((U_i/k))

We're given the spring constant, k = 19.5 N/m, and the mass of the body, m = 0.400 kg. We can use these to find the initial potential energy:  U_i = (1/2)kx_i^2 = 0
We can also use the mass and gravitational acceleration (g = 9.81 m/s^2) to find the weight of the body:
F = mg = (0.400 kg)(9.81 m/s^2) = 3.924 N

Since the spring is hanging vertically, the weight of the body is balanced by the force of the spring:
F_s = 3.924 N

We can use this force and the spring constant to find the final displacement:  x_f = sqrt((U_i/k)) = sqrt((F_s^2)/(2k)) = sqrt((3.924 N)^2/(2(19.5 N/m)))
x_f = 0.402 m
Therefore, the body ascends 0.402 m from its initial position.
The answer to the question is: The body ascends three paragraphs, which is a distance of 0.402 m from its initial position. In the initial position, the mass (0.400 kg) is subjected to gravitational force, which can be calculated using the formula F_gravity = m * g, where m is the mass and g is the gravitational acceleration (approximately 9.81 m/s²). Therefore, F_gravity = 0.400 kg * 9.81 m/s² = 3.924 N.
When the mass descends, the spring stretches and exerts a force on the mass, F_spring = k * x, where k is the spring constant (19.5 N/m) and x is the extension of the spring. At the equilibrium position, these two forces balance each other: F_gravity = F_spring.

To know more about equilibrium visit :-

https://brainly.com/question/31673675

#SPJ11

Answer:

Scientific theory, systematic ideational structure of broad scope, conceived by the human imagination, that encompasses a family of empirical (experiential) laws regarding regularities existing in objects and events, both observed and posited. A scientific theory is a structure suggested by these laws and is devised to explain them in a scientifically rational manner.

Answer:

It can have many set of perpendicular component but the most important one is 3 AND 4

Explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

-5.34 x 10⁷ Coulombs is the total charge on all the electrons in 1.0 kg sum of their charges is qr.

To find the total charge on all the electrons in 1.0 kg of H2O, we need to first determine the number of water molecules in 1.0 kg and then calculate the total charge based on the charge of each electron.
1. Find the number of moles in 1.0 kg of H2O:
Molar mass of H2O = (2 x 1) + 16 = 18 g/mol
1.0 kg = 1000 g
Number of moles = (1000 g) / (18 g/mol) = 55.56 moles
2. Find the number of water molecules:
Number of molecules = 55.56 moles × (6.022 x 10²³ molecules/mol) ≈ 3.34 x 10²⁵ molecules
3. Determine the total number of electrons:
Each H2O molecule has 10 electrons (2 from each hydrogen atom and 8 from the oxygen atom). So, the total number of electrons = 3.34 x 10²⁵ molecules × 10 electrons/molecule ≈ 3.34 x 10²⁶ electrons
4. Calculate the total charge:
Each electron carries a charge of -1.6 x 10⁻¹⁹ C. Therefore, the total charge (qr) = 3.34 x 10²⁶ electrons × (-1.6 x 10⁻¹⁹ C/electron) ≈ -5.34 x 10⁷ C.
In summary, the total charge on all the electrons in 1.0 kg of H2O is approximately -5.34 x 10⁷ Coulombs.

Learn more about  electrons here:

https://brainly.com/question/1255220

#SPJ11

From the calculation, the mass of the dummies head is 1647.44 Kg

We know that the momentum after collision is equal to the momentum before collision.

Mass of the headrest = 2005.6 kg

Initial velocity of the head rest = 4.524 m/s

Final velocity of the head rest =  4.487 m/s

Mass of the dummy = m

Initial velocity of the dummy = -1.005 m/s

Final velocity of the dummy = 9.965 m/s

Then;

(m *  -1.005) + (2005.6 * 4.524 ) = (2005.6 *   4.487) + (m * 9.965)

-1.005m + 9073.33 = 8999.13 + 9.965m

9073.33 - 8999.13  = 9.965m + 1.005m

18072.46 = 10.97m

m = 18072.46/ 10.97

m = 1647.44 Kg

Learn more about momentum:https://brainly.com/question/24030570

#SPJ1

The spectrum observed from the Sun (or any star) would exhibit an absorption spectrum. This is because the outer gaseous atmosphere of the star absorbs specific wavelengths of light, resulting in dark absorption lines in the spectrum.

In the cooler, lower-density outer atmosphere, where white light from the star travels, some atoms or molecules in the atmosphere absorb photons with particular energy. In the spectrum, these absorptions show up as black lines at specific wavelengths. The specific set of absorption lines that each element or molecule generates results in a distinctive pattern that can be used to identify the elements that are present in the star's atmosphere.

The absorption spectrum offers insightful data on the chemical make-up and physical characteristics of the star. Astronomers can ascertain the elements present, their abundances, and other characteristics like the temperature, pressure, and velocity of the star's atmosphere by examining the absorption lines.

To know more about absorption spectrum here https://brainly.com/question/10252035

#SPJ4

Answer:

The unique physical properties, including a high heat of vaporization, strong surface tension, high specific heat, and nearly universal solvent properties of water are also due to hydrogen bonding.

Hi there!

If they are in opposite direction:

- Let UP be the POSITIVE direction and DOWN be the NEGATIVE direction.

Thus:

∑F = 114.6 - 70.7 = 43.9 N upward

If they are in the SAME, downward direction:

∑F = -114.6 - 70.7 = -185.3

The magnitude is the absolute value, so:

|-185.3| = 185.3 N downward

Answer:

The reason why the rocks are more younger than Eart itself is because they come from processes like plate tectonics, volcanoes, and erosions that made up Earth's surface.

Answer:

The lack of impact craters and the age of most rocks on Earth in comparison to other bodies in the solar system can be attributed to processes such as volcanism, plate tectonics, and erosion that have reshaped Earth's surface, and this is why most of Earth's rocks are much younger than the Earth itself.

The acceptance angle can be found using Snell’s law. The acceptance angle is approximately 68.11°. A low acceptance angle is desirable for the efficient transmission of light signals.

The formula for Snell’s law is given by: n1 * sin(θ1) = n2 * sin(θ2)where, n1 and n2 are the refractive indices of the two media, and θ1 and θ2 are the angles of incidence and refraction, respectively. Since the light is incident on the core-cladding interface, we have n1 = 1.6 (refractive index of core)andn2 = 1.55 (refractive index of cladding)We need to find the acceptance angle, which is the largest angle of incidence at the end of the fibre that will propagate by TIR down the length of the fibre. This angle corresponds to the critical angle of incidence. The critical angle of incidence is the angle of incidence for which the angle of refraction is 90°. Thus, we have: n1 * sin(θc) = n2 * sin(90°) = n2θc = sin^-1(n2/n1)θc = sin^-1(1.55/1.6)θc ≈ 68.11°

An optical fibre is a thin, flexible, transparent fibre made of high-quality glass, plastic, or silica that transmits light signals from one end to the other. This can be done with the help of Total Internal Reflection (TIR). In TIR, the fibre core has a higher refractive index than the cladding layer. Thus, when light is incident on the core-cladding interface, it gets reflected back into the core rather than getting refracted out into the cladding. This allows the light to propagate down the length of the fibre. The acceptance angle is the largest angle of incidence at the end of the fibre that will propagate by TIR down the length of the fibre. It corresponds to the critical angle of incidence, which is the angle of incidence for which the angle of refraction is 90°. If the angle of incidence is greater than the critical angle, then the light will not undergo TIR and will be refracted out of the core.

This results in signal loss and reduces the overall efficiency of the fibre. Therefore, it is important to have a low acceptance angle, which ensures that the light is incident on the core at a shallow angle. This reduces the likelihood of signal loss and allows for more efficient transmission of light signals. The acceptance angle can be found using Snell’s law, which relates the refractive indices of the two media to the angle of incidence and refraction. In this case, the acceptance angle is approximately 68.11°. A low acceptance angle is desirable for the efficient transmission of light signals.

To know more about acceptance angle visit

brainly.com/question/31968525

#SPJ11

Answer:

According to this theory:

Each and every molecule of a magnetic substance is a complete magnet in itself, having a north pole and a south pole of equal strength.

In an unmagnetized substance, the molecular magnets are randomly oriented such that they form closed chains.

When the substance is magnetized, the molecular magnets are realigned so that north poles of all molecular magnets point in one direction and south poles of all molecular magnets point in the opposite direction.

When all the molecular magnets are fully aligned, the substance is said to be saturated with magnetism

During heating the magnetized specimen, molecular magnets acquire some kinetic energy. Some of the molecules may get back to the closed chain arrangement. That is why magnetism of the specimen would reduce on heating.

Explanation:

Because the temperature and the radiation are not correlated, they're not represented as functions of each other, they're represented as independent variables thus using graph 5 you cannot figure out how one affect another

Answer:

It doesn’t show how temperature and radiation relate to each other. It’s difficult to draw conclusions from data that’s separated this way.

Based on the observed data of the force acting on the coaster car and its acceleration, the mass of the coaster car is determined to be \(\(\mathbf{m}\)\) grams.

To calculate the mass of the coaster car, we can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration F = ma. Rearranging the equation, we have \(\(m = \frac{F}{a}\)\), where m is the mass of the coaster car,F is the force acting on the car, and a is the acceleration.

Given the data of the force acting on the coaster car and its acceleration, we can substitute the values into the equation to find the mass. It is important to ensure that the force is in the appropriate units (such as Newtons) and the acceleration is in the appropriate units (such as meters per second squared) to obtain the mass in grams.

Once the calculations are performed, the mass of the coaster car can be determined. Remember to convert the mass to grams if necessary, using appropriate conversion factors.

To learn more about acceleration refer:

https://brainly.com/question/30595126

#SPJ11

Answer:

1.positive velocity.

2.speeding up.

Answer:

I think it's 7 × 10²

Explanation:

0.0035 time 200000 is 700 and 700 in scientific notation is 7 × 10²

Though i'm not certain if that is correct

thats the answer 121500J

The total mechanical kinetic energy of the rider and motorcycle is  121500 Joule.

Mechanical energy, also known as kinetic energy or potential energy, is the energy that an object possesses when it is in motion or the energy that an object stores due to its location. Renewable energy is also fueled by mechanical energy. In order to efficiently produce electricity or convert energy, many sources of renewable energy depend on mechanical energy.

Given parameters:

Mass of the person: m = 70 kg.

Mass of the motorcycle: M = 200 kg.

Speed of the motorcycle: v = 30 m/s.

Total mass of the person and the motorcycle = m + M = 70 kg + 200 kg = 270 kg.

Hence, total mechanical kinetic energy = 1/2 × total mass × speed²

= 1/2 × 270 × 30² Joule

= 121500 Joule.

Learn more about mechanical energy here:

https://brainly.com/question/29509191

#SPJ2

The most accurate range provided for our spectrum of light that is visible is 380-740 nm. Option c is correct.

The visible spectrum of light refers to the range of electromagnetic radiation that can be detected by the human eye, typically between 380 to 740 nanometers in wavelength. This range is perceived by the human eye as different colors, with violet having the shortest wavelength and red having the longest. The visible spectrum is just a small portion of the electromagnetic spectrum, which includes other forms of radiation such as radio waves, microwaves, X-rays, and gamma rays.

Scientists use various devices to detect and measure the different ranges of the electromagnetic spectrum. Understanding the properties and behaviors of light in different ranges is important in fields such as astronomy, optics, and communications. Hence, option c is correct.

To know more about visible spectrum, here

brainly.com/question/13262930

#SPJ4